gordon



(No Model.)

P. W. GORDON.

TUYERE PIPE FOR BLAST FURNACES.

Patented Sept. 28, 1886.

II! n NITED STATES PATENT OFFICE.

FRED. \V. GORDON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO GOR- DON, STROBEL & LAIVREAU, OF SAME PLACE.

TUYERE-PIPE FOR BLAST-FURNACES.

SPECIFICATION forming part of Letters Patent No. 349,841, dated September 28, 1886.

Application filed January 1?, 1886.

Serial No. 188,881. (No model.)

To all whom, it may concern.-

Be it known that I, FRED. W. GORDON, of Philadelphia, Philadelphia county, Pennsylvania, have invented certain new and useful Improvements in Tuyerc-Pipes for Blast-Furnaces, of which the following is a specification.

This invention pertains to blow-pipes used in blast-furnaces for making connection be tween the tuyeres and the circle-pipe which supplies the tuyeres.

The invention will be readily understood from the following description, taken in connection with the accompanying drawings, in which Figure 1 is a side elevation of a blow-pipe employing my improvements, the circle-pipe being shown in vertical section; and Fig. 2, a horizontal section of the pipe on line N.

In the drawings, A indieatesin vertical section the usual circle-pipe, which surrounds a blast-furnace above the level of the tuyeres; B, the usual tnyere-pipe leading to the tuyere from the lower end of the blow-pipe; O, the usual inclined neck attached to the circle-pipe and forming the upper section of the blowpipe; D, the lower inclined section of the blowpipe reaching from the upper section to the tuyere-pipe; E, a globe-faced joint between the tuyere-pipe and the lower section of the blow-pipe, the male element of this globe-j oint being formed upon the blow-pipe, while the female element is formed in the tuyere-pipe; F, a globe-facedjoint connecting the two sections of the b1ow-pipe; G, a short crane-arm reaching inward from the upper section of the blow-pipe over thelowcr section; H, thcpivot point or post on which the crane-arm swings, such point being housed in suitablelugs formed upon or attached to the upper section of the blow-pipe; J, a cylindrical suspension-rod attached to the lower section of the blow-pipe and projecting upward through the inner end of the crane-arm and supported thereby; K, a spring around this rod over the end of the crane-arm and under an adjusting-nut upon the top of the rod, such spring being seated partly in a chamber in the upper portion of the end of the crane-arm L, a horizontal shelf formed upon the upper section of the blowpipe,below the crane-arm and concentric with the crane-post; M, a wheel housed in the under portion of the crane-arm and fitted to a roll upon the shelf; N, a dottedline indicating theplane of the section on which Fig. 2 is taken, O,averiicalline passingthrough the axis of the crane-post and through a point coinciding with the sphere center of thejoint F; I, avertical line passing through the center of gravity of the lower section of the blow-pipe, and Q a horizontal pivot passing throughlugsformed on the lower section of the blow-pipe and through an eye at the foot of the suspensionrod, the axis of this pivot intersecting the line I.

The tuyere-pipe I3 is connected to the tuyere 5 5 in the usual manner. The globe-joints are formed, as usual, with metallic contacting-surfaces accurately intermcmbering. In the drawings, dotted lines are introduced at the two joints, indicating complete spheres, of

which the joints are zones, the complete spheres being indicated in order that the location of the sphere-centers may be more readily appreciated. It will be seen at once that the lower section of the blow-pipe is maintained 7 in proper position with both its end joints properly closed, by means of the suspensionrod. This is the normal working position of the lower section of the blow-pipe. The spring K endows the suspension with elasticity and permits a limited variation in the position of the lower section of the blow-pipe. As the pivot Q, is in the plane of the center of gravity of the lower section of the blow'pipe, it is obvious that this lower section would maintain the position in which itis shown independent of the ball-joints. If the lower end of the lower section be pushed sidewise, the lower section will disengage from the tuyere-pipe and may be swung to one side, the line 0 representing 0 the axis of the swinging motion.' As the lower section is swung to one side the crane-arm turns upon the crane-post. The sphere-center of the joint F being in the axial line of the crane-post, enables the side swingto take 5 place uninterfered with by the joint F. As

the side swing takes place, the wheel M rolls upon the shelf, and the crane-post is thus relieved of severe strains, while the swinging motion is rendered comparatively free from friction. The disposition of the pivot Q in the plane of the center of gravity of the lower section of the blow-pipe permits of the section being swung sidewise without the motion being resisted by excessive friction at the joint F. While the lower section is turned to the side, it may be uncoupled at the joint F by simply elevating the lower end of the section, the section then oscillating upon the pivot Q. When thus oscillated, the lower section may be swung around upon the axis of the suspensionrod at will until the lower end of the section points outward. WVhen the lower section of the blow-pipe is swung to one side, the tuyerepipe and tuyere may be inspected," repaired, removed, replaced, &c., with great conven- Hience, the blow-pipe being out of the way.

Other forms ofjoint may be employed at the point where the blow-pipe joins the tuyerepipe; but I very much prefer a metallic globejoint in which, as shown, the female element is in the tuyere-pipe, as the disengagement of the joint at the initiation of the side swinging motion of the lower section is thereby effected with the least possible outward motion of the lower end of the lower section. If the cranearm were rigidly attached to the upper section of the blow-pipe, it will be understood that the lower end of the blow-pipe could be disengagedby a downward motion permitted by the yielding of the spring, and that then the lower section could be turned around, the suspensionrod serving as the axis of revolution, and the joint becoming disengaged. I

In United States Letters Patent No. 294,123, granted to me February 26, 1884, for tuyerepipes, I show and describe an inclined lower section coupled to an upper section by a separable joint. In that device, however, the lower section is hung upon trunnions whose axis occupies a substantially fixed position, and this lower section is thus capable of an oscillating motion only, there being no provision whatever for side movement of the lower section; nor was the suspension-axis arranged in the line of the center of gravity of the lower section; nor was the lower end of the lower section fitted with the male element of a globejoint to facilitate the side movement.

My attention has also been called to a tuyere-pipe illustrated and described some years ago in a German publication, the device having a lower section coupled to a fixed upper section by a globe-joint, the lower section being provided with trunnions supported in a yoke capable of oscillating upon the fixed upper section. In this device the joint betweenthe fixed upper section and the lower section was not a separable joint, no provision whatever being made for a complete uncoupling of the two sections; nor was the suspended part of the device balanced in any manner; nor was the suspending-yoke, by means of which the fixed upper section supported the section connected directly thereto, capable of permitting said immediately-connectedIsection to be .moved sidewise; norwas such immediatelyconnected section provided with the male element of a ball-joint.

My present claims are not to be construed I as comprehending either of the old devices mentioned, neither of which exhibits the combination of elements recited in my present claims nor combinations capable of equivalent results.

I claim as my invention- 1. In a blast-pipe, the combination, with upper section, 0, and inclined lower section, 1), coupled together by a separable joint, of a horizontally-traveling support disposed over the lower section and a suspender connecting the lower section with such support, substantially as described, for the purpose of enabling the suspended lower section to be moved sidewise.

2., In a' blast-pipe, the combination, with upper section, 0, and inclined lower section, v D, coupled together by a separable joint, of a horizontally-traveling support disposed over the lower section and a suspender connecting the lower section to the support and vertically pivoted in the support, substantially as described, for the purpose of enabling the lower section to be moved sidewise and rotated upon the axis of the suspender.

3. In a blast-pipe, the combination, with upper section, 0, and lower section, D, coupled together by a separable joint, of a horizontally-traveling support disposedover thelower section and a suspender connecting the support with the lower section and united to the latter by ahorizontal pivot, substantially as 4 described.

4. In a blast-pipe, the combination, with upper section, 0, and lower section, D,coupled together by a separable joint, of a support disposed above the lower section and a suspender connecting the support with the lower section and united to the latter by a horizontal pivot disposed in the plane of the center of gravity of the lower section, substantially as described.

5. In a blast-pipe, the combination of the upper section, 0, and lower section, D, coupled together by a separable joint, of a horizonta1lytraveling support pivoted over the lower section, and a suspender connecting the support with the lower section, substantially as described.

6. In a blast-pipe, the combination of the upper section, 0, and lower section, D, coupled together bya separable joint, of ahorizontallytraveling support pivoted over the lower section, awheel housed in the support, a shelf below the wheel, and a suspender connecting the support with the lower section, substantially as described.

7. In-a blast-pipe, the combination of the upper section, 0, and lowersection, D, coupled together by a separable ball-joint, of a pivoted traveling support disposed over the lower section, and with its pivot-axis in line with the sphere-center of the joint, andasuspender c0nlower section, and a tuyerepipe, B, provided necting the support with the lower section, with the female element of n ball-joint, snb- 10 substantially as described. stztntially as described.

8. In a blast-pipe, the combination of up- T 5 per section, 0, side moving lower section, D, FRED GORDON provided with the male element of a ball-joint Witnesses: at its lower end, balljoint F, connecting the JNo. TAYLOR, two sections, a support and suspender for the L. FRANK GORDON.

" It is hereby certified that the names of the assignees in Letters Patent No. 349,841, l granted September 28, 1886, upon the application of Fred. W. Gordon, of Philadelphia, Pennsylvania, for an improvement in Tuyere-Pipes for Blast-Furnaces, were erroneously written and and printed Gordon, Strobel 8n Lawreau, Whereas said names should have been Written and printed Gordon, Strobel (f; Lcuweau; and that the said i Letters Patent should be read with this correction therein that the same may conform i to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 5th day of October, A. D. 1886.

[SEAL] H. L. MULDBOW,

Acting Secretary of the Interio in Letters Patent No. 349

Oountersigned:

R. B. VANCE,

Acting Gommtss'ionerof Patents. 

